CN107147246B - A kind of ventilation cooling system of scaled bulb tubular hydraulic generator - Google Patents
A kind of ventilation cooling system of scaled bulb tubular hydraulic generator Download PDFInfo
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- CN107147246B CN107147246B CN201710524968.8A CN201710524968A CN107147246B CN 107147246 B CN107147246 B CN 107147246B CN 201710524968 A CN201710524968 A CN 201710524968A CN 107147246 B CN107147246 B CN 107147246B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
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- Motor Or Generator Cooling System (AREA)
Abstract
A kind of ventilation cooling system of scaled bulb tubular hydraulic generator, hydro-electric power generating equipment technical field, fixed including one and movement setting altogether bubble head and out frame, the engine block being fixed in out frame, and be folded in out frame and steep the stator upstream flange between head, further include at least one set of ventilation assembly and at least one set is kept out the wind component, wherein, multiple ventilation assemblies are fixed on stator upstream flange, and concyclic week is uniformly at intervals；Multiple components that keep out the wind are detachably mounted to the inside of out frame, are connected to form mutually independent single-cycle wind-supply unit each other with multiple ventilation assemblies by stator upstream flange；The energy consumption of entire ventilating system is reduced by the way that the component that keeps out the wind inside out frame is arranged in this, multiple circulating ventilations be can be avoided in internal confusion, vortex down draught is prevented, enhance the cooling to winding overhang, axial air volume adjustment can effectively be improved, improve the result of ventilating heat dissipation of unit.
Description
Technical field
The present invention relates to a kind of ventilation cooling systems of scaled bulb tubular hydraulic generator, are to be related to one kind specifically
Applied to ventilating and cooling effect in scaled bulb tubular hydraulic generator, can be enhanced, ventilation energy consumption is reduced, the dirts such as brake dust are prevented
It contaminates object to enter in the ventilating system in closed self-loopa ventilation routes, belongs to hydro-electric power generating equipment technical field.
Background technique
The ventilation cooling system of existing bulb tubular hydraulic generating set is generally cooling using closed mode is dispersed,
Survey circumferencial direction distribution number Fans in stator upstream and cold wind be pressed into stator downstream side on the inside of rotor field spider, then from
Stator and rotor gap returns to the survey of stator upstream, in the process takes away the stator and rotor fever of unit, cold wind becomes hot wind, enters back into sky
Cooler makes hot wind and cooling water carry out heat exchange, and hot wind becomes cold wind again, then enters blower by closed ventilating duct again,
Circulation is formed, the runner passed through there are cooling wind is very long, and it directly affects through wind and takes away the efficiency of heat, cooling effect
Fruit is poor, and the dust pollution object in operation process easily enters in closed self-loopa ventilation routes, directly affects each member of generator
The service life of device.
Several structure shapes are proposed for the ventilation cooling system of vertical bulb tubular hydraulic generating set in the prior art
Formula, but all there are various problems: 1, scaled bulb tubular hydraulic generator that CN201320462960.0 provide concentrate open type logical
Air cooling system, its bubble head are arranged with the bubble crown flange that bubble head is divided into cold wind chamber and hot air cavity；In out frame
Forebay part be equipped with front wind screen, rear cold wind wind deflector and rear hot wind that forebay is partitioned into cold-hot wind channel are kept out the wind
Plate；The vertical wind deflector and rotor field spider that out frame inside division is gone out to cold wind chamber and hot air cavity are equipped with inside out frame,
By the way that air cooler, blower are distinguished centralized and unified arrangement, the cold wind of unit and hot wind are subjected to synthesis respectively, however, should
The ventilation cooling system of kind design, the runner that cold wind passes through is very long, directly affects through wind and takes away the efficiency of heat,
Cooling effect is poor, and more difficult maintenance and maintenance；2, the cooling through-flow water wheels of a kind of through type that CN201520299507.1 is provided
Generator ventilator, the hot wind come out in tubular-Francis turbine from air outlet keep out the wind by induced draft plate assembly, intermediate ring, with centre ring
Plate is introduced into cooler and cools down, and the cold air after cooling is drawn into generator amature branch by skew wind stream machine by ventilating duct
Frame, wind deflector, rotor field spider and rotor wind deflector form wind shielding structure, and generator and cooling duct is allowed to form an air
The circulatory system, however the generator ventilator adopted the structure, in actual application, air pass through multiple works
After making region, workpiece is carried at work due to wearing bring particle, directly passes through closed ventilating and cooling cyclic system
System, is again introduced into working region, accelerates the abrasion of workpiece, reduce the service life of complete equipment, and there are larger
Security risk.
Therefore, need it is a kind of can enhance ventilating and cooling effect, reduce the energy consumption of ventilation, prevent the pollutants such as brake dust into
Enter the ventilation cooling system in closed self-loopa ventilation routes, be capable of forming enough wind pressure, prevent vortex down draught, enhancing to around
The axial air volume adjustment of cooling and improvement of group end, improves the result of ventilating heat dissipation of unit.
Summary of the invention
The diameter of bulb tubular hydraulic generating set is small, revolving speed is low, the wind pressure as caused by the elements such as rotor and fan
More conventional hydrogenerator it is much lower.The lt/ τ value of generator is again very big, up to 6~7, so the rational design of wind shield device
It is particularly important.
In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a kind of scaled bulb tubular hydraulic generators
Ventilation cooling system, can enhance ventilating and cooling effect, reduce ventilation energy consumption, prevent the pollutants such as brake dust enter it is closed from
It in circulating ventilation route, is capable of forming enough wind pressure, prevents vortex down draught, enhance the cooling to winding overhang and improve axial
Air volume adjustment improves the result of ventilating heat dissipation of unit.
For achieving the above object, The technical solution adopted by the invention is as follows:
A kind of ventilation cooling system of scaled bulb tubular hydraulic generator, fixed including one and movement setting altogether bubble head
And out frame, the engine block being fixed in out frame, and be folded in out frame and steep on the stator between head
Flange is swum, further includes at least one set of ventilation assembly and at least one set is kept out the wind component, wherein multiple ventilation assemblies are fixed on stator
It swims on flange, and concyclic week is uniformly at intervals；Multiple components that keep out the wind are detachably mounted to the inside of out frame, by fixed
Sub- upstream flange is connected to form mutually independent single-cycle wind-supply unit each other with multiple ventilation assemblies；With this, pass through
The component that keeps out the wind inside out frame is set, and the single-cycle wind-supply unit constructed together with stator upstream flange shortens
The cooling stroke of air, avoids the waste of heat-exchange power, enhances ventilating and cooling effect, reduces entire ventilating system
Energy consumption, and due to independently of one another, while forming enough wind pressure, can be avoided multiple circulating ventilations between vent passages and existing
Internal confusion prevents vortex down draught, enhances the cooling to winding overhang, can effectively improve axial air volume adjustment, improves
The result of ventilating heat dissipation of unit.
Preferably, in order to promote the effect of ventilation and heat, distribution of the ventilation assembly along the axis concyclic week of out frame.
Preferably, in order to simplify the arrangement of connecting pipe, optimize pipeline occupied space, two ventilation assemblies compositions one
Ventilating and cooling unit, the ventilation assembly are 60 ° by circumference angle along the axis of out frame and are evenly distributed with.
Preferably, in order to reduce the occupied space of ventilation cooling system, run through stator upstream flange, court inside ventilation assembly
The inner cavity of big gun head, which extends, to be fixed, and the setting with the connects with the internal cavities of out frame.
Preferably, ventilation assembly includes cooler, cooler ventilation duct, blower ventilation pipe and blower, cooler and blower
It is fixed on stator upstream flange, and is spaced apart；Cooler ventilation duct and blower ventilation pipe clamp be located at cooler and blower it
Between, and seal the setting of connection therewith respectively.
Preferably, the cooler is through being fixed on stator upstream flange, and the internal cavities towards out frame extend
Setting；The sealing of cooler ventilation duct and cooler be connected to fixation, assembling on the ring flat-plate of out frame, blower ventilation pipe and
Blower connection fix, the setting that cooler ventilation duct is connected to the blower ventilation seal of tube, by cooler, cooler ventilation duct,
Blower ventilation pipe and blower form a cycling element, increase circulation wind pressure using blower, carry out hot and cold wind using cooler
Heat exchange, constitute one it is recyclable, it is possible to provide the cooling cooling unit of local ventilation.
Preferably, cooler is aerial cooler, further, for the ease of overhauling and safeguarding, reduces use cost, on
Stating cooler is copper-tube aluminium chip aerial cooler.
Preferably, the component that keeps out the wind includes brake wind deflector, round wind deflector, access panel and main wind deflector, wherein system
The fixation of dynamic device wind deflector and round wind deflector and stator upstream flange one, and the setting moved altogether；Access panel is fixed on
On stator upstream flange, and with the opposed other side that stator upstream flange is set of ventilation assembly；Main wind deflector and stator
The setting of base coaxial line, and the entirety sealed is connected into access panel, with this, pass through stator upstream flange, braking
Device wind deflector, round wind deflector, out frame side plate, access panel and main shaft wind deflector construct jointly and enter convenient for cooling air
Internal cavity, and the hot-air with heat can be completely cut off, the single-cycle cold air channel of cooling air is realized, without heat-exchange power
Waste；Using the reasonable Arrangement between wind deflector, enhance the ventilating and cooling effect of unit；Brake wind deflector is utilized simultaneously
Isolation design, prevents the pollutants such as brake dust from entering in ventilation routes, and caused unit pollution extends making for entire unit
With the service life, prevent because dust or particle enter bring security risk inside generating set.
Preferably, brake wind deflector and round wind deflector are fixed on stator upstream flange, and are set up separately in cooler
The setting of all side seals avoids forming cooling circuit in all sides of cooler.
Preferably, in order to avoid blower is in the gap that operation process, firm banking occur, access panel is fixed on stator
On base, and arrangement corresponding with blower.
Compared with prior art, the ventilation cooling system of a kind of scaled bulb tubular hydraulic generator provided by the invention leads to
Subcooler, cooler ventilation duct, blower ventilation pipe and blower form a cycling element, carry out hot and cold wind using cooler
Heat exchange, constitute one it is recyclable, it is possible to provide the cooling cooling unit of local ventilation；Due to only each other between vent passages
It is vertical, while forming enough wind pressure, it can be avoided multiple circulating ventilations in internal confusion, prevent vortex down draught, enhancing
Cooling to winding overhang can effectively improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit；By on stator
Trip flange, brake wind deflector, round wind deflector, out frame side plate, access panel and main shaft wind deflector construct jointly and are convenient for
Cooling air enters internal cavity, and can completely cut off the hot-air with heat, realizes the single-cycle cold air channel of cooling air, does not have
There is the waste of heat-exchange power；Using the reasonable Arrangement between wind deflector, enhance the ventilating and cooling effect of unit；System is utilized simultaneously
The isolation design of dynamic device wind deflector, prevents the pollutants such as brake dust from entering in ventilation routes, and caused unit pollution extends
The service life of entire unit has prevented because dust or particle enter bring security risk inside generating set.
Figure of description
Fig. 1 is the structural schematic diagram of the preferred embodiment of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 2 is the structural schematic diagram of another preferred embodiment of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 3 is the structural schematic diagram of the preferred embodiment of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 4 is the structural schematic diagram of the ventilation assembly of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 5 is the structural schematic diagram of the component that keeps out the wind of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 6 is the structural schematic diagram of the excitation component of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 7 is the structure enlargement diagram of the excitation component of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 8 is the structural schematic diagram of the brake assemblies of scaled bulb tubular hydraulic generator provided by the invention；
Fig. 9 is the structure enlargement diagram of the brake assemblies of scaled bulb tubular hydraulic generator provided by the invention.
Specific embodiment
The present invention is made further to illustrate in detail, completely below with reference to embodiment and attached drawing.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
It as depicted in figs. 1 and 2, is a kind of ventilation cooling system of scaled bulb tubular hydraulic generator provided by the invention
The structural schematic diagram of preferred embodiment, the ventilation cooling system can enhance ventilating and cooling effect, reduce ventilation energy consumption, prevent from making
The pollutants such as dynamic dust enter the ventilation cooling system in closed self-loopa ventilation routes, are capable of forming enough wind pressure, prevent
It is vortexed down draught, enhance the cooling to winding overhang and improves axial air volume adjustment, improves the result of ventilating heat dissipation of unit.It is a kind of excellent
In selection of land embodiment, as shown in Figure 1, the ventilation cooling system includes: the bubble head 10 and determine that one is fixed and movement is arranged altogether
Handset seat 20, the engine block being fixed in out frame 20, and be folded in out frame 20 and steep and determine between head 10
Sub- upstream flange 21, further includes at least one set of ventilation assembly 30 and at least one set is kept out the wind component 40, wherein multiple ventilation assemblies 30
It is fixed on stator upstream flange 21, and concyclic week is uniformly at intervals；Multiple components 40 that keep out the wind are detachably mounted to stator
The inside of seat 20 is connected between being formed with multiple ventilation assemblies 30 by stator upstream flange 21 and mutually independent is singly followed
The wind-supply unit of ring；With this, by the way that the component 40 that keeps out the wind inside out frame 20 is arranged in, with stator upstream flange 21 together structure
The single-cycle wind-supply unit built shortens the cooling stroke of air, avoids the waste of heat-exchange power, and it is cold to enhance ventilation
But effect reduces the energy consumption of entire ventilating system, and due to independently of one another, forming enough wind pressure between vent passages
Meanwhile, it is capable to avoid multiple circulating ventilations in internal confusion, vortex down draught is prevented, the cooling to winding overhang is enhanced, it can
It is effective to improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit.
Out frame 20 can be various structures appropriate, and usually steel plate butt welding forms, and be entire scaled bulb tubular water
Turbine generator group provides enough rigidity and carrys out various load during Inhaul operation.
Preferably, in order to promote the effect of ventilation and heat, point of the ventilation assembly 30 along the axis concyclic week of out frame 20
Cloth；Further, in order to simplify the arrangement of connecting pipe, optimize pipeline occupied space, two one ventilations of the composition of ventilation assemblies 30
Cooling unit；Further, which is 60 ° by circumference angle along the axis of out frame 20 and is evenly distributed with.
In order to reduce the occupied space of ventilation cooling system, it is preferable that as shown in Figure 1, through fixed inside ventilation assembly 30
Sub- upstream flange 21 extends towards the inner cavity of bubble head 10 and fixes, and the setting with the connects with the internal cavities of out frame 20.
Ventilation assembly 30 can be various structures appropriate, be usually welded by panel and supporting rib, to have foot
Enough rigidity loads and bears uncertain position load, it is preferable that as shown in Figure 3 and Figure 4, including it is cooler 31, cooling
Device ventilation duct 32, blower ventilation pipe 33 and blower 34, cooler 31 and blower 34 are fixed on stator upstream flange 21, and are spaced
Distribution, cooler ventilation duct 32 and blower ventilation pipe 33 are folded between cooler 31 and blower 34, and sealing connects therewith respectively
Logical setting.Specifically, the cooler 31 is through being fixed on stator upstream flange 21, towards the internal cavities of out frame 20
The setting of extension；Cooler ventilation duct 32 is connected to fixation with the sealing of cooler 31, and blower 34 is mounted on stator upstream flange 21,
Blower ventilation pipe 33 is connected to fixation with blower 34, and cooler ventilation duct 32 seals the setting being connected to blower ventilation pipe 33.With this,
A cycling element is formed by cooler, cooler ventilation duct, blower ventilation pipe and blower, increases circulated air using blower
Pressure, carries out the heat exchange of hot and cold wind using cooler, constitute one it is recyclable, it is possible to provide cooling cooling single of local ventilation
Member.
Preferably, above-mentioned cooler 31 is aerial cooler；Further, it for the ease of overhauling and safeguarding, reduces and uses
Cost, above-mentioned cooler 31 are lacing film expansion-joint type aerial cooler.
In conclusion the ventilation assembly provided in embodiment disclosed by the invention, by cooler, cooler ventilation duct,
Blower ventilation pipe and blower form a cycling element, and the heat exchange of hot and cold wind is carried out using cooler, constitute one and are recycled
, it is possible to provide the cooling cooling unit of local ventilation.
Can be various structures appropriate by the component 40 that keeps out the wind that panel and supporting rib are welded, it is preferable that such as Fig. 3 and
Shown in Fig. 5, including brake wind deflector 41, round wind deflector 42, access panel 43 and main wind deflector 44, wherein brake gear
The fixation of aerofoil 41 and round wind deflector 42 and 21 one of stator upstream flange, and the setting moved altogether；Access panel 43 is fixed
On stator upstream flange 21, and with the opposed other side that stator upstream flange 21 is set of ventilation assembly 30；Master is kept out the wind
The setting of plate 44 and 20 coaxial line of out frame, and the entirety for connecting into a sealing with access panel 43 passes through stator with this
Upstream flange, brake wind deflector, round wind deflector, out frame side plate, access panel and main shaft wind deflector construct just jointly
Enter internal cavity in cooling air, and the hot-air with heat can be completely cut off, realizes the single-cycle cold air channel of cooling air,
There is no the waste of heat-exchange power；Using the reasonable Arrangement between wind deflector, enhance the ventilating and cooling effect of unit；It utilizes simultaneously
The isolation of brake wind deflector designs, and prevents the pollutants such as brake dust from entering in ventilation routes, and caused unit pollution extends
The service life of entire unit has prevented because dust or particle enter bring security risk inside generating set.
Brake wind deflector 41 and round wind deflector 42 are detachably mounted on stator upstream flange 21, and are sealed therewith
Connection, with this, the peripheral side that can be realized out frame is preferably sealed.
Further, brake wind deflector 41 and round wind deflector 42 are fixed on stator upstream flange 21, and are set up separately
The setting of all side seals of cooler 31 is avoided in the side of cooler 31 due to poorly sealed caused cooling circuit.
Preferably, in order to avoid maintenance ventilation hole leaks out, access panel 43 is fixed on stator upstream flange 21, and and wind
The corresponding arrangement of machine 34.
Cooling-fan installation principle in preferred embodiment provided by the invention:
Blower generates band air-flow and provides after blower ventilation pipe and cooler ventilation duct for the cold air in cooler
Wind pressure, so that cooling air with pressure enters inner cavity along the channel that brake wind deflector and customization upstream flange surround jointly,
Effective cooling can be realized to winding overhang, by the air with heat inside unit in round wind deflector, access panel
It is discharged under the collective effect of main wind deflector, with this, completes cooling to the single cycle inside unit.
In conclusion the ventilation cooling system of scaled bulb tubular hydraulic generator provided by the invention, by cooler, cold
But device ventilation duct, blower ventilation pipe and blower form a cycling element, and the heat exchange of hot and cold wind, structure are carried out using cooler
It is recyclable at one, it is possible to provide the cooling cooling unit of local ventilation；Due to independently of one another, forming foot between vent passages
While enough wind pressure, it can be avoided multiple circulating ventilations in internal confusion, prevent vortex down draught, enhance to winding overhang
It is cooling, it can effectively improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit；Pass through stator upstream flange, braking
Device wind deflector, round wind deflector, out frame side plate, access panel and main shaft wind deflector construct jointly and enter convenient for cooling air
Internal cavity, and the hot-air with heat can be completely cut off, the single-cycle cold air channel of cooling air is realized, without heat-exchange power
Waste；Using the reasonable Arrangement between wind deflector, enhance the ventilating and cooling effect of unit；Brake wind deflector is utilized simultaneously
Isolation design, prevents the pollutants such as brake dust from entering in ventilation routes, and caused unit pollution extends making for entire unit
With the service life, prevent because dust or particle enter bring security risk inside generating set.
On the basis of the above embodiments, in a kind of specific embodiment, the generator sheet that is fixed in out frame 20
Body further includes excitation component 50, the setting of the excitation component 50 and 20 coaxial line of out frame；Pass through issue external power supply
Electric energy is powered by thyristor to excitation component, is entire main generator ontology after excitation component generates corresponding exciting current
Exciting current is provided, is then entire scaled bulb tubular hydraulic generator excitation, using the scaled bulb tubular water of the excitation component
Turbine generator good voltage waveform, aberration rate is small, and is able to solve the pollution of carbon dust and copper powder to machine winding, improves the exhausted of motor
The edge service life；It is able to achieve brushless double frequency power generation, is also able to achieve brushless variable-frequency power generation.
Specifically, as shown in Figure 6 and Figure 7, excitation component 50 includes generator unit stator 51, generator amature 52, exciter
Stator 53 and exciter rotor 54, wherein generator unit stator 51 is mounted in the coaxial setting in inside of out frame 20, and with it is fixed
The arrangement of 20 coaxial line of handset seat；Exciter stator 53 is fixed by the bracket on out frame 20, and be fixed on generator
The setting that the arrangement exciter stator 53 of exciter rotor 54 coaxially on rotor 52 is connected to external power supply, exciter rotor 54
It is connected to generator amature 52, with this, exciter stator is supplied power for by the electric energy that external power supply issues by thyristor, is encouraged
Magnetomechanical rotor generates corresponding exciting current, and potential that the exciter rotor generates, electric current are provided for generator amature and encouraged
Magnetic is formed as the excitation component of entire bulb tubular hydraulic generating set, using the bulb through-flow type hydro-turbo of the excitation component
Generator voltage waveform is good, and aberration rate is small, and is able to solve the pollution of carbon dust and copper powder to machine winding, improves the insulation of motor
Service life.
Further, the exciter stator 53 is AC excitation machine stator, and the exciter rotor 54 is AC excitation
Machine rotor；Preferably, armature winding is on exciter rotor 54, and excitation winding is on stator 53, exciter rotor 54 and excitation
Machine stator 53 is built into the Energizing unit of turbine-generator units；With this, by external power supply, to the excitation on exciter stator
Winding provides excitation, and exciter rotor armature winding issues alternating current under electromagnetic induction；
Preferably, generator unit stator 51 and generator amature 52 are configured to the electric power output unit of turbine-generator units,
Wherein, main generator armature winding is in generator unit stator 51, and the excitation winding of main generator is on generator amature 52.
For the ease of during electric motor starting and synchronizing again, control start loop is open-minded, there is motor full symmetric
Asynchronous driving torque, further include being fixed on inside out frame 20, the rotating rectifier 55 being connected to excitation machine electric appliance.
Preferably, in order to optimize the occupied space of excitation component, along the radial direction of out frame 20, far from 20 axis of out frame
The direction of line, the arrangement of 53 sequence of rotating rectifier 55, exciter rotor 54 and exciter stator；Further, along stator
Seat 20 radial direction, far from 20 axis of out frame direction, rotating rectifier 55, exciter rotor 54 and exciter stator 53 according to
Secondary arrangement.
The working principle of above-mentioned excitation component:
The exciter part that scaled bulb tubular hydraulic generator is made of exciter rotor 54 and exciter stator 53, passes through
After external power supply provides excitation for entire scaled bulb tubular hydraulic generator excitation, the armature group of exciter rotor 54, which issues, to be handed over
Galvanic electricity, by powering after over commutation to the excitation winding of main generator rotor 52, to make the armature of main generator unit stator 51
Winding induces required alternating current.
In conclusion being powered by thyristor to exciter stator by the electric energy for issuing external power supply, exciter turns
Son generates corresponding exciting current, exports DC current after rotating rectifier rectifies as generator amature power supply, generator
It is entire bulb-generator excitation that rotor, which generates corresponding exciting current, using the scaled bulb tubular water of the excitation component
Turbine generator good voltage waveform, aberration rate is small, and is able to solve the pollution of carbon dust and copper powder to machine winding, improves the exhausted of motor
The edge service life；It is able to achieve brushless double frequency power generation, is also able to achieve brushless variable-frequency power generation.Two-frequency variable-frequency brush-free synchronous electric generator can make double frequency
Power generation and variable-frequency power generation realize non-brushing, eliminate slip-ring brush, no-spark High-frequency Interference, no slip ring and carbon brush wear problem；
Power frequency and voltage of intermediate frequency are not interfere with each other when power generation, and voltage waveform lower edge is good, and power supply quality is excellent；Generator high reliablity, dimension
Shield is simple, the intelligent automation control in power station easy to accomplish.
As the preferable scheme of another kind of the present embodiment, for live faster installation and entire scaled bulb tubular
The maintenance of generator further includes as shown in Figure 8 and Figure 9 being detachably mounted on stator upstream flange 21, towards generator sheet
The extended brake assemblies 60 of body simplify the structure of entire generating set, save by the way that dismountable brake assemblies are arranged
Installation space optimizes mounting process, improves field erected efficiency, and convenient for subsequent by being removably arranged
Maintenance and replacement, reduce use cost.
Preferably, brake assemblies 60 are folded between bubble head 10 and out frame 20, along the axially extending of out frame 20,
With this, big gun head inner space, convenient and quick realization installation, maintenance and maintenance are cleverly utilized.
Brake assemblies 60 can be various structures appropriate, be preferably carried out in mode in the present invention, including brake 61
With brake backing plate 62, wherein brake backing plate 62 runs through stator upstream flange 21, and dismountable fixed therewith；Brake
61 is fixed through brake backing plate 62, and relative to the adjustable setting in 62 position of brake backing plate；Further, in order to improve
Stationarity and reliability of the brake in braking process, the setting of 62 coaxial line of brake 61 and brake backing plate；With this, lead to
The brake backing plate being detachably fixed is crossed, and relative to the adjustable brake in brake backing plate position, both convenient for brake
Installation, debugging, and it is convenient for subsequent maintenance and maintenance, installation space can be saved, working efficiency is improved, improves generator machine
The braking ability of group, and have many advantages, such as that braking ability is stable, installation is convenient and low in cost.
Optionally, for the convenient and quick dismounting for realizing brake, brake assemblies 60 further include for dismounting braking
The dismantling device 63 of device 61, the dismantling device 63 is removably fixed with brake backing plate 62, and drivable with brake 61
Connection needs to install or dismantle brake with this, and after only need to fixing brake backing plate by dismantling device, cooperation driving is
Removable brake to simplify the technique of installation and the debugging of brake, and has many advantages, such as that installation is convenient and at low cost.
It is provided in brake system in the preferred embodiment for the present invention, passes through the detachable control of brake and brake backing plate
System is easily installed personnel in external installation, and the tired of installation brake need to be carried out by small space inside unit by solving tradition
Difficulty, and it is easy to overhaul replacement；Simultaneously in view of the weight of brake and brake backing plate, brake dismounting work has dexterously been set
Tool provides great convenience during the installation process and is easy to adjust installation for installation personnel.
Now to the installation method of brake for example, being convenient for by the detachable control of brake and brake backing plate
Installation personnel is in external installation, and the difficulty of installation brake need to be carried out by small space inside unit by solving tradition, and easily
In maintenance replace, wherein the installation method of brake the following steps are included:
Step A: brake 61 is fixed on brake backing plate 62
Step B: brake dismantling device 63 is fixed on brake backing plate 62
Step C: dismantling device 63 is lifted by crane by driving
Step D: brake 61 and brake backing plate 62 are fixed on out frame 20 by control dismantling device 63
Step E: dismantling device 63 is removed, the installation of brake is completed.
In conclusion brake is independent at dismountable component, optimize transmission scaled bulb tubular hydraulic generator system
The structure of dynamic device simplifies the structure of entire generating set, saves installation space by the dismountable brake assemblies of setting,
And by being removably arranged, mounting process is optimized, improves field erected efficiency, and convenient for subsequent maintenance and more
It changes, reduces use cost.
Be it is necessary to described herein finally: above embodiments are served only for making technical solution of the present invention further detailed
Ground explanation, should not be understood as limiting the scope of the invention, those skilled in the art's above content according to the present invention
The some nonessential modifications and adaptations made all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of ventilation cooling system of scaled bulb tubular hydraulic generator, fixed including one and movement setting altogether bubble head
(10) and out frame (20), the engine block being fixed in out frame (20), and be folded in out frame (20) and
Steep the stator upstream flange (21) between head (10), which is characterized in that further include at least one set of ventilation assembly (30) and at least one
Group is kept out the wind component (40), wherein multiple ventilation assemblies (30) are fixed on stator upstream flange (21), and the interval in concyclic week is equal
Cloth；Multiple components that keep out the wind (40) are detachably mounted to the inside of out frame (20), by stator upstream flange (21) with
Mutually independent single-cycle wind-supply unit between multiple ventilation assembly (30) connections are formed；Two ventilation assemblies
(30) a ventilating and cooling unit is formed, the ventilation assembly (30) by circumference angle is 60 ° along the axis of out frame (20)
It is uniformly distributed；The component (40) that keeps out the wind includes brake wind deflector (41), round wind deflector (42), access panel (43) and main wind deflector
(44), wherein the fixation of brake wind deflector (41) and round wind deflector (42) and stator upstream flange (21) one, and fortune altogether
Dynamic setting；Access panel (43) is fixed on stator upstream flange (21), and is existed with the opposed setting of ventilation assembly (30)
The other side of stator upstream flange (21)；The setting of main wind deflector (44) and out frame (20) coaxial line, and and access panel
(43) entirety of a sealing is connected into.
2. ventilation cooling system according to claim 1, which is characterized in that ventilation assembly (30) is along out frame (20)
The distribution in axis concyclic week.
3. ventilation cooling system according to claim 2, which is characterized in that run through stator upstream inside ventilation assembly (30)
Flange (21) extends towards the inner cavity of bubble head (10) and fixes, and the setting with the connects with the internal cavities of out frame (20).
4. ventilation cooling system according to claim 1, which is characterized in that ventilation assembly (30) include cooler (31),
Cooler ventilation duct (32), blower ventilation pipe (33) and blower (34), cooler (31) and blower (34) are fixed on stator upstream
On flange (21), and it is spaced apart；Cooler ventilation duct (32) and blower ventilation pipe (33) are folded in cooler (31) and blower
(34) between, and the setting of connection is sealed therewith respectively.
5. ventilation cooling system according to claim 4, which is characterized in that the cooler (31), which is run through, is fixed on stator
On upstream flange (21), towards the setting of the internal cavities extension of out frame (20)；Cooler ventilation duct (32) and cooler
(31) sealing connection is fixed, and blower (34) is mounted on stator upstream flange (21), and blower ventilation pipe (33) and blower (34) are even
Logical to fix, cooler ventilation duct (32) seals the setting being connected to blower ventilation pipe (33).
6. ventilation cooling system according to claim 4 or 5, which is characterized in that cooler (31) is aerial cooler.
7. ventilation cooling system according to claim 1, which is characterized in that brake wind deflector (41) and round wind deflector
(42) it is fixed on stator upstream flange (21), and sets up the setting in all side seals of cooler (31) separately.
8. ventilation cooling system according to claim 1 or claim 7, which is characterized in that access panel (43) is fixed on stator
It swims on flange (21), and arrangement corresponding with blower (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524968.8A CN107147246B (en) | 2017-06-30 | 2017-06-30 | A kind of ventilation cooling system of scaled bulb tubular hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524968.8A CN107147246B (en) | 2017-06-30 | 2017-06-30 | A kind of ventilation cooling system of scaled bulb tubular hydraulic generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107147246A CN107147246A (en) | 2017-09-08 |
| CN107147246B true CN107147246B (en) | 2019-12-03 |
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ID=59785413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710524968.8A Active CN107147246B (en) | 2017-06-30 | 2017-06-30 | A kind of ventilation cooling system of scaled bulb tubular hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107147246B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994354B (en) * | 2021-02-20 | 2022-02-18 | 浙江富春江水电设备有限公司 | Large-scale bulb tubular hydraulic generator ventilation cooling system without air cooler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071791A (en) * | 1976-06-01 | 1978-01-31 | General Electric Company | Reverse flow cooled dynamoelectric machines with novel cooling system |
| CN1889332A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Medium and high speed large capacity hydroelectric generator |
| CN204030860U (en) * | 2014-08-28 | 2014-12-17 | 广东梅雁吉祥水电股份有限公司坝头水电站 | There is the hydraulic generator of ventilation cooling device |
| CN207150345U (en) * | 2017-06-30 | 2018-03-27 | 湖南云箭集团有限公司 | A kind of ventilation cooling system of hydrogenerator |
-
2017
- 2017-06-30 CN CN201710524968.8A patent/CN107147246B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071791A (en) * | 1976-06-01 | 1978-01-31 | General Electric Company | Reverse flow cooled dynamoelectric machines with novel cooling system |
| CN1889332A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Medium and high speed large capacity hydroelectric generator |
| CN204030860U (en) * | 2014-08-28 | 2014-12-17 | 广东梅雁吉祥水电股份有限公司坝头水电站 | There is the hydraulic generator of ventilation cooling device |
| CN207150345U (en) * | 2017-06-30 | 2018-03-27 | 湖南云箭集团有限公司 | A kind of ventilation cooling system of hydrogenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107147246A (en) | 2017-09-08 |
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